component
TPS2421-1DDA
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS2421-1DDA
Texas Instruments · Supervisor And Reset ICs · SO-8
TPS2421-1DDA from Texas Instruments, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | FLT | output | Fault low indicated the fault time has expired and the FET is switched off |
| 2 | EN | input | Device is enabled when this pin is pulled low |
| 3 | VIN | power_in | Power In and control supply voltage |
| 4 | GND | power_in | GND |
| 5 | ISET | bidirectional | A resistor to ground sets the fault current, the current limit is 150% of the fault current |
| 6 | CT | bidirectional | A capacitor to ground sets the fault time |
| 7 | VOUT | output | Output to the load |
| 8 | PG | output | Power Good low represents the output voltage is within 300 mV of the input voltage |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPS2421-1DDA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
tps2421-1dda-etched.step/tps2421-1dda-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps2421-1dda.step/tps2421-1dda.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
ab2cf03f01620f54, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).